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Vitamin D (25-Hydroxy) Testing

Private Testing Online: Tests & Biomarkers Available

How to check your Vitamin D levels with a home finger-prick blood test kit

What Is A Vitamin D Test For?

A Vitamin D test is also known as an Ergocalciferol (Vitamin D2), Cholecalciferol (Vitamin D3), Calcidiol or Calcitriol test.

Vitamin D is an essential vitamin, mostly produced in the skin by sunlight (up to 90%) although it is also absorbed from food & supplements.

Its main role is regulating how the body absorbs calcium, phosphate and magnesium from the gut.

Correct levels of these minerals are vital for healthy bone growth.

Buy Your Vitamin D Blood Test Online

Learn all about Vitamin D Testing:

Vitamin D Testing UK Statistics 2021

Icon For Vitamin D

21.5% of people tested have Vitamin D levels which are too low.

And 1.8% have levels that are too high.

The average Vitamin D result is 75.9 nmol/L
Note what is normal for you may differ for your age and gender.

Human female body

Women tend to have lower Vitamin D in their blood than men.

As many as one in four women tested have low levels of Vitamin D

Normal range test results


of people have Vitamin D blood levels in the normal range. Do you?

Are you in the 76.6% with normal results?

What If Vitamin D Test Levels Are High?

What If Vitamin D Test Levels Are High?

High levels of vitamin D typically result from excessive supplementation rather than natural exposure.

Together with high levels of calcium this can lead to damage to blood vessels, kidneys and other organs. 

What If Vitamin D Test Levels Are Low?

What If Vitamin D Test Levels Are Low?

Although typically due to a lack of sunlight, note that low Vitamin D levels can also be caused by underlying conditions that reduce the absorption of Vitamin D from food.

Parathyroid hormone levels, kidney function, taking certain medications or being at a higher risk from fractures should also be considered when seeking treatment.

Consultation with a medical professional is recommended to fully understand the cause of deficiency and to ensure appropriate treatment.

NICE recommend treating vitamin D deficiency with fixed high doses of a vitamin D supplement for 6 - 10 weeks followed by lifelong maintenance treatment. You can learn more here.

How To Test Vitamin D?

Health testing for Vitamin D levels in your blood

The Vitamin D (25-Hydroxy) Test allows you to accurately check your levels of Vitamin D in a fingerprick blood sample.

You can check your Vitamin D levels by buying a home finger-prick blood test kit below. Your sample is then professionally analysed in an accredited laboratory for total reassurance. The Vitall Vitamins & Minerals Complete Home Test Kit includes a Vitamin D test and is available for just £89.

Please see the following test kits:

Other Biomarkers Often Tested With Vitamin D

Why Take The Vitamin D Test?

Our Full Vitamins & Minerals home blood test kit checks several biomarkers including Vitamin D so you can identify vitamin & mineral deficiencies and optimise your nutritional intake. 

Deficiencies can produce few or vague symptoms so it's often difficult to identify them without testing and monitoring your progress.

Take control of your health without any of the inconvenience of going to the doctors with one of Vitall’s at-home blood tests.

Who Should Take The Vitamin D Blood Test?

Fully identify & optimise nutritional deficiencies using a home finger-prick blood test kit.

You get the convenience of home testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.

This Vitamins & Minerals Complete Test is advised if you:

  • are aged over 45;
  • are at risk from osteoporosis;
  • are currently menopausal, which can lead to deficiencies;
  • are currently pregnant;
  • are on any restrictive diet (vegans & vegetarian especially);
  • have Chrohn's disease (which can lead to malnutrition);
  • have Coeliac disease (which can cause malnutrition);
  • suffer from chronic fatigue & tiredness;
  • want to understand & improve your general health;
  • wish to have a baby;
  • want the convenience of home testing without waiting for a GP appointment;
  • need a high quality, clinically accredited test done in a professional clinical laboratory.

Take a complete health check-up with Vitall.

How Much Do Vitamins And Minerals Complete Tests Cost?

The Vitall vitamins and minerals complete test is available online for just £89. Your home test kit will be dispatched by free first class post for delivery to your door.

For the best value testing you can also upgrade this vitamins and minerals complete home test to tests which also measure other biomarkers, including:

When you checkout to buy your vitamins and minerals complete test online we also offer additional options, including:

  • Upgrade to next day delivery of your home test kit for an additional £7.99.
  • Visit the Patient Reception in central London for just £25. Your vitamins and minerals complete test sample can be collected by a qualified nurse for immediate analysis.
  • Have a nurse visit you to collect the sample for your vitamins and minerals complete test, this is available within the M25 area for just £149.

Whichever option you choose at checkout, buying the best vitamins and minerals complete test online in the UK with Vitall ensures high quality results from an accredited laboratory.

Take control of your health today with one of Vitall’s home blood tests.

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